<template>
  <div class="app-container">

    <!-- 工具条 -->
    <div class="tools-div">
      <el-button type="success" icon="el-icon-plus" size="mini" @click="add()">添 加</el-button>
    </div>
    <el-table
      :data="sysMenuList"
      style="width: 100%;margin-bottom: 20px;margin-top: 10px;"
      row-key="id"
      border
      :default-expand-all="false"
      :tree-props="{children: 'children'}"
    >
      <el-table-column prop="name" label="菜单名称" width="160"/>
      <el-table-column label="图标">
        <template slot-scope="scope">
          <i :class="scope.row.icon"/>
        </template>
      </el-table-column>
      <el-table-column prop="perms" label="权限标识" width="160"/>
      <el-table-column prop="path" label="路由地址" width="120"/>
      <el-table-column prop="component" label="组件路径" width="160"/>
      <el-table-column prop="sortValue" label="排序" width="60"/>
      <el-table-column label="状态" width="80">
        <template slot-scope="scope">
          <el-switch v-model="scope.row.status === 1" :disabled="true"/>
        </template>
      </el-table-column>
      <el-table-column prop="createTime" label="创建时间" width="160"/>
      <el-table-column label="操作" width="180" align="center" fixed="right">
        <template slot-scope="scope">
          <el-button type="success" v-if="scope.row.type !== 2" icon="el-icon-plus" size="mini" @click="add(scope.row)" title="添加下级节点"/>
          <el-button type="primary" icon="el-icon-edit" size="mini" @click="edit(scope.row)" title="修改"/>
          <el-button type="danger" icon="el-icon-delete" size="mini" @click="removeDataById(scope.row.id)" title="删除" :disabled="scope.row.children.length > 0"/>
        </template>
      </el-table-column>
    </el-table>
    <!-- 添加或修改的表单 -->
    <el-dialog :title="dialogTitle" :visible.sync="dialogVisible" width="40%">
      <el-form ref="dataForm" :model="sysMenu" label-width="150px" size="small" style="padding-right: 40px;">
        <el-form-item v-if="sysMenu.id === ''" label="上级部门">
          <el-input v-model="sysMenu.parentName" :disabled="true"/>
        </el-form-item>
        <el-form-item label="菜单类型" prop="type">
          <el-radio-group v-model="sysMenu.type" :disabled="typeDisabled">
            <el-radio :label="0" :disabled="type0Disabled">目录</el-radio>
            <el-radio :label="1" :disabled="type1Disabled">菜单</el-radio>
            <el-radio :label="2" :disabled="type2Disabled">按钮</el-radio>
          </el-radio-group>
        </el-form-item>
        <el-form-item label="菜单名称" prop="name">
          <el-input v-model="sysMenu.name"/>
        </el-form-item>
        <el-form-item v-if="sysMenu.type !== 2" label="图标" prop="icon">
          <el-select v-model="sysMenu.icon" clearable>
            <el-option v-for="item in iconList" :key="item.class" :label="item.class" :value="item.class">
              <span style="float: left;">
                <i :class="item.class"/>  <!-- 如果动态显示图标，这里添加判断 -->
              </span>
              <span style="padding-left: 6px;">{{ item.class }}</span>
            </el-option>
          </el-select>
        </el-form-item>
        <el-form-item label="排序">
          <el-input-number v-model="sysMenu.sortValue" controls-position="right" :min="0"/>
        </el-form-item>
        <el-form-item prop="path">
          <span slot="label">
            <el-tooltip content="访问的路由地址，如：`sysUser`" placement="top">
              <i class="el-icon-question"/>
            </el-tooltip>
            路由地址
          </span>
          <el-input v-model="sysMenu.path" placeholder="请输入路由地址"/>
        </el-form-item>
        <el-form-item v-if="sysMenu.type !== 0" prop="component">
          <span slot="label">
            <el-tooltip content="访问的组件路径，如：`system/user/index`，默认在`views`目录下" placement="top">
              <i class="el-icon-question"/>
            </el-tooltip>
            组件路径
          </span>
          <el-input v-model="sysMenu.component" placeholder="请输入组件路径"/>
        </el-form-item>
        <el-form-item v-if="sysMenu.type === 2">
          <el-input v-model="sysMenu.perms" placeholder="请输入权限标识" maxlength="100"/>
          <span slot="label">
            <el-tooltip content="控制器中定义的权限字符，如：@PreAuthorize(hasAuthority('bnt.sysRole.list'))" placement="top">
              <i class="el-icon-question"/>
            </el-tooltip>
            权限字符
          </span>
        </el-form-item>
        <el-form-item label="状态" prop="type">
          <el-radio-group v-model="sysMenu.status">
            <el-radio :label="1">正常</el-radio>
            <el-radio :label="0">停用</el-radio>
          </el-radio-group>
        </el-form-item>
      </el-form>
      <span slot="footer" class="dialog-footer">
        <el-button size="small" icon="el-icon-refresh-right" @click="dialogVisible = false">取 消</el-button>
        <el-button type="primary" icon="el-icon-check" size="small" @click="saveOrUpdate()">确 定</el-button>
      </span>
    </el-dialog>
  </div>
</template>

<script>
import api from '@/api/system/sysMenu'

const defaultForm = {
  id: '',
  parentId: '',
  name: '',
  type: 0,
  path: '',
  component: '',
  perms: '',
  icon: '',
  sortValue: 1,
  status: 1
}
export default {
  // 定义数据
  data() {
    return {
      sysMenuList: [], // 菜单树列表

      typeDisabled: false, // 菜单类型是否可点击
      type0Disabled: false,
      type1Disabled: false,
      type2Disabled: false,
      dialogTitle: '', // 添加节点时的标题

      dialogVisible: false,
      sysMenu: defaultForm,

      iconList: [
        {
          class: 'el-icon-s-tools'
        },
        {
          class: 'el-icon-s-custom'
        },
        {
          class: 'el-icon-setting'
        },
        {
          class: 'el-icon-user-solid'
        },
        {
          class: 'el-icon-s-help'
        },
        {
          class: 'el-icon-phone'
        },
        {
          class: 'el-icon-s-unfold'
        },
        {
          class: 'el-icon-s-operation'
        },
        {
          class: 'el-icon-more-outline'
        },
        {
          class: 'el-icon-s-check'
        },
        {
          class: 'el-icon-tickets'
        },
        {
          class: 'el-icon-s-goods'
        },
        {
          class: 'el-icon-document-remove'
        },
        {
          class: 'el-icon-warning'
        },
        {
          class: 'el-icon-warning-outline'
        },
        {
          class: 'el-icon-question'
        },
        {
          class: 'el-icon-info'
        }
      ]
    }
  },

  // 当页面加载时获取数据
  created() {
    this.fetchData()
  },

  methods: {
    // 调用api层获取数据库中的数据
    fetchData() {
      // 调用api中的方法查询所有菜单
      api.findMenuNodes().then(res => {
        // 给sysMenuList赋值
        this.sysMenuList = res.data
      })
    },

    // 根据id删除数据
    removeDataById(id) {
      // debugger
      this.$confirm('此操作将永久删除该记录, 是否继续?', '提示', {
        confirmButtonText: '确定',
        cancelButtonText: '取消',
        type: 'warning'
      }).then(() => { // promise
        // 点击确定，远程调用ajax
        return api.delete(id)
      }).then((response) => {
        this.fetchData()
        this.$message({
          type: 'success',
          message: response.message
        })
      }).catch(() => {
        this.$message.info('取消删除')
      })
    },

    // 弹出添加表单
    add(row) {
      debugger
      // 设置菜单类型不可点击
      this.typeDisabled = true
      // 设置添加表单的标题
      this.dialogTitle = '添加下级节点'
      // 展示添加节点的表单
      this.dialogVisible = true

      this.sysMenu = Object.assign({}, defaultForm)
      // this.sysMenu.id = ''
      if (row) {
        // 设置要添加菜单或按钮的父id为当前节点的id
        this.sysMenu.parentId = row.id
        this.sysMenu.parentName = row.name
        if (row.type === 0) {
          // 添加菜单
          this.sysMenu.type = 1
          this.typeDisabled = false
          this.type0Disabled = false
          this.type1Disabled = false
          this.type2Disabled = true
        } else if (row.type === 1) {
          // 添加按钮
          this.sysMenu.type = 2
        }
      } else {
        // 添加目录
        this.dialogTitle = '添加目录节点'
        this.sysMenu.type = 0
        this.sysMenu.component = 'Layout'
        this.sysMenu.parentId = 0
      }
    },

    // 编辑
    edit(row) {
      // 弹出编辑的表单
      this.dialogVisible = true
      // 调用api中根据id查询的方法
      api.getById(row.id).then(res => {
        // 给sysMenu赋值
        this.sysMenu = res.data
      })
    },

    // 添加或更新
    saveOrUpdate() {
      // 隐藏添加或修改的表单
      this.dialogVisible = false
      if (this.sysMenu.type === 0 && this.sysMenu.parentId !== 0) {
        this.sysMenu.component = 'ParentView'
      }
      if (!this.sysMenu.id) {
        this.save()
      } else {
        this.update()
      }
    },

    // 添加
    save() {
      // 调用api中添加的方法
      api.save(this.sysMenu).then(res => {
        this.$message.success(res.message)
        this.fetchData()
      })
    },

    // 更新
    update() {
      // 调用api中更新的方法
      api.update(this.sysMenu).then(res => {
        this.$message.success(res.message)
        this.fetchData()
      })
    }
  }
}
</script>
